public override object VisitVariableDeclaration_Variable([NotNull] CMinusParser.VariableDeclaration_VariableContext context)
{
string variableName = context.ID().GetText();
string variableType = SymbolTable.Symbol.RemoveExtras(context.typeSpecifier().GetText());
if (variableType == "void")
{
this.EmitSemanticErrorMessage("Variable declared as void type", context);
}
SymbolTable.Symbol symbol = new SymbolTable.Symbol(
id: variableName,
type: variableType,
construct: SymbolTable.Symbol.Construct.VARIABLE,
scope: 0,
size: 1,
pointerCount: SymbolTable.Symbol.CountStringAsterisks(context.typeSpecifier().GetText())
);
bool success = this.symbolTable.AddSymbol(symbol);
if (!success)
{
this.EmitSemanticErrorMessage($"Symbol {variableName} already in symbol table as a {this.symbolTable.GetSymbol(variableName).construct}", context);
}
return(null);
}
public override object VisitVariableDeclaration_Variable([NotNull] CMinusParser.VariableDeclaration_VariableContext context)
{
this.symbolTable.AddVariable(context.ID().GetText(), 1);
if (this.inGlobalScope)
{
this.writer.WriteContextRegisterRead();
this.writer.WriteImmediate(1);
this.writer.WriteBinaryArithmeticExpression("+");
this.writer.WriteContextRegisterWrite();
}
return(null);
}
public override object VisitVariableDeclaration_Variable([NotNull] CMinusParser.VariableDeclaration_VariableContext context)
{
this.writer.WriteVariableDeclaration(context.ID().GetText());
return(null);
}
